191508748160 has 128 divisors (see below), whose sum is σ = 485115337440. Its totient is φ = 72044052480.

The previous prime is 191508748159. The next prime is 191508748163. The reversal of 191508748160 is 61847805191.

It is a happy number.

191508748160 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (128).

It is a junction number, because it is equal to n+sod(n) for n = 191508748099 and 191508748108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (191508748163) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16651532 + ... + 16663028.

Almost surely, 2^191508748160 is an apocalyptic number.

191508748160 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 191508748160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (242557668720).

191508748160 is an abundant number, since it is smaller than the sum of its proper divisors (293606589280).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

191508748160 is a wasteful number, since it uses less digits than its factorization.

191508748160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13064 (or 13052 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 50.

The spelling of 191508748160 in words is "one hundred ninety-one billion, five hundred eight million, seven hundred forty-eight thousand, one hundred sixty".